/***************************************************************************/
/*                                                                         */
/*  ftgasp.c                                                               */
/*                                                                         */
/*    Access of TrueType's `gasp' table (body).                            */
/*                                                                         */
/*  Copyright 2007 by                                                      */
/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
/*                                                                         */
/*  This file is part of the FreeType project, and may only be used,       */
/*  modified, and distributed under the terms of the FreeType project      */
/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
/*  this file you indicate that you have read the license and              */
/*  understand and accept it fully.                                        */
/*                                                                         */
/***************************************************************************/


#include <ft2build.h>
#include FT_GASP_H
#include FT_INTERNAL_TRUETYPE_TYPES_H


FT_EXPORT_DEF( FT_Int )
FT_Get_Gasp( FT_Face face,
             FT_UInt ppem )
{
    FT_Int result = FT_GASP_NO_TABLE;


    if ( face && FT_IS_SFNT( face ))
    {
        TT_Face ttface = ( TT_Face ) face;


        if ( ttface->gasp.numRanges > 0 )
        {
            TT_GaspRange range = ttface->gasp.gaspRanges;
            TT_GaspRange range_end = range + ttface->gasp.numRanges;


            while ( ppem > range->maxPPEM )
            {
                range++;
                if ( range >= range_end )
                {
                    goto Exit;
                }
            }

            result = range->gaspFlag;

            /* ensure that we don't have spurious bits */
            if ( ttface->gasp.version == 0 )
            {
                result &= 3;
            }
        }
    }
    Exit:
    return result;
}


/* END */
